Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The network the meter is hosted on, not the meter itself, took a 6Gbps DDoS.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Wow, nasty! Thankfully it didn't last too long.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Whoops! I don't even know how I missed that! Haha.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Indeed, would've been trouble if people didn't have their daily fix of looking at the graph.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Me too, but 10 this morning.

[img]Download Failed (1)[/img]

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Interesting, Seph. What is it?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Got one at 10 too

http://www.thinkbroadband.com/ping/s...04-04-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Been well hammering my connection this weekend with FTP.

[img]Download Failed (1)[/img][/url][/IMG]

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

http://www.thinkbroadband.com/ping/s...06-04-2014.png

I thought something funny was going on :D, my connections been a bit flakey for gaming the last week or two (fine for everything else mind) :)

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Only 6Gbps? Sounds a bit tame for a DDoS, I could generate 10Gbps off a single machine...

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I can't explain this. I wasn't at home at the time. There were no power outages. Everything was normal when I arrived home.

http://www.thinkbroadband.com/ping/s...01-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

VMNG300 swap to a SHUB2, somewhat better max latency...

http://www.thinkbroadband.com/ping/s...24-04-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Someone claimed that the max latency of the Ambit 300 was a bit of a side-effect and not actually representative of the modem itself.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Just swapped out the Superhub 2 for an old WNR2000 router I had lying around, Ive updated the firmware and it's working fine but interesting to see there doesnt appear to be any drop in latency or jitter.

So on the face of it no real benefit apart from the router being pretty configurable compared to the Superhub 2. The second big red spike was me swapping out the cables for cat6 ones I had spare.

http://www.thinkbroadband.com/ping/s...07-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Mine has been a mixed bag for the past 5 months, speed is fine for the most part though it has dropped as low as 40Mb on occasion.

http://www.thinkbroadband.com/ping/s...07-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Same old same old over on BT's side, I'm in Crappydeen now so even higher base pings :(

https://www.cableforum.co.uk/images/...2014/05/27.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

What's worse, higher base ping or higher jitter?

http://www.thinkbroadband.com/ping/s...08-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Depends on your usage. If you're gaming jitter is probably worse, as it makes interactions inconsistent and jumpy in extreme cases. If you're downloading or browsing high jitter isn't much of an issue, it'll be overall faster if average latency stays lower. Unbuffered VOIP is another jitter sensitive one, particularly as your ears have much higher temporal response than your eyes.

I've never found base latency to differ much between ISPs, as there are many factors that can make latency higher than the minimum but none that can make it go below the minimum, it's just a question of how much above base each ISP stays.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I've genuinely had no issues gaming on VM. My wife had some issues with WoW a while ago but I think that was bad traffic shaping or something, it has been resolved for some time.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

WoW isn't really a game that requires a fast connection. Most MMORPGs have a second or more of lag built into the system anyway.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

No, I know that, but a while ago (a good year or so, probably longer) there were major issues with WoW on VM connections, where latency was shooting into figures of several hundred, sometimes > 1000.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Ah yeah, I think I remember something like that, WoW (and a few other, less well-known things) were misclassified as P2P by VM.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I posted packet captures showing the rather aggressive and unsubtle upstream shaping that was in use.

They were also shaping the Think Broadband non-HTTP speed test.

WoW had a patch which changed the protocol and the Allot kit didn't spot it anymore.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The EU's new rules on net neutrality will hopefully put an end to this traffic shaping nonsense.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Well there's someone who won't be voting UKIP.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

If I was going to be a closet racist, I'd vote BNP, not diet bigot.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

:LOL:

That's Bigot Lite :D

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Woke up this morning with no broadband. Rebooted the SHUB and it eventually came back, but it's not pretty:

[img]Download Failed (1)[/img]

Annoyingly, power levels and such seem fine, 8 DS locked but 1 US is "Aborted". Not at home to do more thorough testing.

I also did a speed test, you wouldn't think anything was wrong:

https://www.cableforum.co.uk/images/...2014/05/17.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I reported the same problem in another thread but no one replied, is it worth contacting virgin about?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

It's always worth contacting them. I doubt our problems are related as I'm in Warrington.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Always worth phoning up (UK) to see if they're doing anything in your area.

What about the neighbours, Kush?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

No idea on the neighbours, Seph, I'll have to check when I get home. I can VPN in though, so the connection can't be that bad (And the ping graph has calmed down a bit, it seems)- I just can't reboot the hub (unless someone can point me to a way of doing this remotely?).

Just for completeness, here's the stats:

https://www.cableforum.co.uk/images/...2014/05/14.png

https://www.cableforum.co.uk/images/...2014/05/15.png

As you can see, everything except that particular upstream seems to check out.

I'm hoping that another reboot will get it back on, but if not then hopefully even on a single upstream I should still have a usable connection. The wife has a raid tonight, so that'll be a good test!

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I had a similar outage according to the graph, but I can't VPN in from work to check levels, although my levels are **** anyway.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Run it off a switched PDU or hook it up to some low-voltage embedded device with a relay? :p:

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I've got a raspberry Pi, I'm sure there's a blue-peter-esque way of combining that with some sticky-back-plastic to create such a thing.

But frankly I'd rather use it to watch cheap films.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Hehe. Well Raspberry Pis (or Virgin Media DIR-615's) are actually ideal platforms for build-it-yourself solutions like that. All you'd need is a 12v power supply and a transistor. And a few lines of code. You could still easily use it for watching "cheap films" as well.

I've been tempted to build similar things with a DIR-615 and some relay switches for 240v sockets (commercial products cost £30+ per socket), but that's slightly more dangerous when you get it wrong than a 12v supply to a Superhub.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

As fun as that sounds, my electrical engineering is a bit rubbish. Or rather, non-existant.

On the bright side, finally home and rebooted - back to normal, it seems!

https://www.cableforum.co.uk/images/...2014/05/16.png

I've even got my 2 "other" upstreams showing again. I yearn for the day when they become active so we can maybe get back to 10:1 (or better).

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Well, it's extremely likely both will arrive at the same time.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Quite possibly. We've seen people on QAM64 as well. If 2x QAM16 is enough for my area (and I don't seem to suffer congestion), then 4x QAM64 should be good for 10:1 at the very least, I think.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

If you have a VPN can't you just connect to the SH over that and perform a S/W reboot?

Eeeps

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

How would I reboot it? I don't think there's an option on the web interface?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The old activation portal would force a reboot.

And the SH2 does have a reboot option in the menu, but only in router mode. But it's likely you can still trigger it by navigating to the page while in modem mode if you had the link handy.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

How to reboot your modem remotely.

Go to - https://my.virginmedia.com/faults/service-status - Scroll down to the pc icon - click on Lost internet connection - and run the test and it will restart your equipment

Attachment 25467

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I did actually try that, but it just said nothing obvious was wrong :\

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

My BB is down, fault at 10pm fix by 4pm BAH HUMBUG!

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I'm sure some enterprising young hacker could devise some sort of antichrist of a magic packet that'll crash and reboot the Superdud when sent to it over the tinternets.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Like some kind of backwards WOL? :D

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

If such a thing were doable, we all really would be SOL.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Indeed, LOL.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I'm clearly missing something obvious because if you're not in RouterMode and have not enabled Remote Access then you could try using the BroadBand Diagnostic option via MyVirginMedia (Service Status sub menu's)? That can occasionally offer a remote reboot if you're Hub hasn't been rebooted for a couple of days?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Yes I think the obvious thing you're missing is this:

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Not sure if this is the link you guys re on about, but I find the one below tends to work for me if I can't login to the router etc

https://activation.virginmedia.com/Activation/

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

That is indeed an interesting alternative as the BB Diagnostic appears to use a different threshold to determine if the SH needs rebooting. Previously I assumed that forcing an activation "hit/reboot" would be identical to BB Diagnostic approach but when I tested "Activation" it not only rebooted my SH2 immediately (after it was manually rebooted 6hrs previously) but it also threw two errors (effectively saying it hadn't rebooted properly "error 96") despite having full connectivity after the attempt! Perhaps one might need to even try both methods?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Just get tone of these and you'll be able to remotely reboot anything, web interface or no web interface.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Anyway, back to the topic.....

Here is mine - quite happy with this.

http://www.thinkbroadband.com/ping/s...26-05-2014.png

https://www.cableforum.co.uk/images/local/2014/05/6.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

[img]Download Failed (1)[/img]

Mine always has a bit of yellow grass on it.... pass the mower...

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Are you still using an Ambit 300 or are you using a superhub?

http://www.thinkbroadband.com/ping/s...26-05-2014.png

Mine has returned back to normal now, no issues here :D

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Hmmmm snapshot of today

http://www.thinkbroadband.com/ping/s...26-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

No idea what's going on with the connection since last night.

https://www.cableforum.co.uk/images/local/2014/05/2.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

SHUB2

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Anyone any ideas? Seems to be ok for 30mins to 1 hour after a restart and then the latency starts increasing and the packet loss starts. Power levels are ok I think.

Downstream
DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 291000000 Hz 283000000 Hz 299000000 Hz 307000000 Hz 315000000 Hz 323000000 Hz N/A N/A
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked N/A N/A
Channel ID 68 67 69 70 71 72 N/A N/A
Modulation QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 N/A N/A
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 N/A N/A
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 N/A N/A
Power Level (dBmV) -0.5 dBmV -0.5 dBmV -0.7 dBmV -0.8 dBmV 1.0 dBmV 1.0 dBmV N/A N/A
RxMER (dB) 36.7 dB 36.9 dB 36.7 dB 36.5 dB 36.3 dB 36.2 dB N/A N/A

Upstream
US-1 US-2 US-3 US-4
Channel Type 2.0 2.0 N/A N/A
Channel ID 49 50 N/A N/A
Frequency (Hz) 46200000 Hz 39400000 Hz N/A N/A
Ranging Status Success Success N/A N/A
Modulation QAM16 QAM16 N/A N/A
Symbol Rate (Sym/sec) 5120000 5120000 N/A N/A
Mini-Slot Size 128 128 N/A N/A
Power Level (dBmV) 45.3 dBmV 45.3 dBmV N/A N/A
T1 Timeouts 0 0 N/A N/A
T2 Timeouts 0 0 N/A N/A
T3 Timeouts 0 0 N/A N/A
T4 Timeouts 0 0 N/A N/A

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Give them a ring, something isn't right there though the power levels look all right.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Now in modem mode, can't complain

http://www.thinkbroadband.com/ping/s...31-05-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Looks as though they know about it going off the service status. Hopefully be fixed by 12pm tomorrow.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

So this has been me for the last few days:

https://www.cableforum.co.uk/images/...2014/07/35.png

I've lost an upstream as well.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Seems to have returned to relative normality as of 4pm today

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

If I'm completely honest, I didn't even notice there was an issue until I went to check one of the other graphs today.

I've not been on it much but browsing and downloads seemed fine. The wife was raiding on WoW on Wednesday night and didn't notice anything either, which is a bit weird, I'd have expected some lag going her way.

You can see where I've rebooted the modem just before 4 and coincidentally it seems to have settled not much after that.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Wondered where my speed had gone

https://www.cableforum.co.uk/images/...2014/07/29.png

not so much a bump more a brick wall :(

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Looks like VM have taken their extreme bufferbloat out of their Superhubs and put it in their core network instead...

... That, or that's some extreme circuitous routing (but the packet loss suggests more saturation).

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Saturation might be cause by too much traffic being redirected through a particular node.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Yep something has fallen over again, although you wouldn't think that from the telephone 'support'

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

What are your modem stats? And how about a few tracerts?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Downstream DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 434250000 426250000 442250000 450250000 458250000 466250000 N/A N/A
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked Unlocked Unlocked
Channel ID 2 1 3 4 5 6 N/A N/A
Modulation 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM Unknown Unknown
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 N/A N/A
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 N/A N/A
Power Level (dBmV) -1.40 -1.63 -1.19 -0.97 -0.89 -1.16 N/A N/A
RxMER (dB) 37.94 37.64 37.94 37.09 38.26 38.26 N/A N/A
Pre RS Errors 417 1029 385 358 279 886 N/A N/A
Post RS Errors 271 310 285 310 279 886 N/A N/A

Upstream US-1 US-2 US-3 US-4
Channel Type 2.0 N/A N/A 2.0
Channel ID 17 N/A N/A 20
Frequency (Hz) 46200000 N/A N/A 25800000
Ranging Status Success Other Other Success
Modulation 32QAM N/A N/A 16QAM
Symbol Rate (Sym/sec) 5120000 N/A N/A 5120000
Mini-Slot Size 4 N/A N/A 4
Power Level (dBmV) 48.25 N/A N/A 45.75
T1 Timeouts 0 0 0 0
T2 Timeouts 0 0 0 0
T3 Timeouts 0 0 0 0
T4 Timeouts 0 0 0 0


Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Epideme>tracert bbc.co.uk

Tracing route to bbc.co.uk [212.58.244.20]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms routerlogin.net [192.168.0.1]
2 9 ms 6 ms 9 ms cpc10-staf7-2-0-gw.3-1.cable.virginm.net [86.6.2
04.1]
3 72 ms 72 ms 71 ms brhm-core-2b-ae3-1858.network.virginmedia.net [6
2.255.32.245]
4 77 ms 72 ms 76 ms brhm-bb-1b-ae8-0.network.virginmedia.net [62.253
.174.77]
5 79 ms * 71 ms brhm-bb-2a-ae2-0.network.virginmedia.net [62.254
.42.105]
6 * * * Request timed out.
7 * * * Request timed out.
8 76 ms 76 ms 95 ms 212.58.239.249
9 * * * Request timed out.
10 * * * Request timed out.
11 80 ms 78 ms 78 ms ae0.er01.telhc.bbc.co.uk [132.185.254.109]
12 80 ms 77 ms 80 ms 132.185.255.149
13 78 ms 77 ms 77 ms fmt-vip71.telhc.bbc.co.uk [212.58.244.20]

Trace complete.

C:\Users\Epideme>tracert bbc.co.uk

Tracing route to bbc.co.uk [212.58.244.20]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms routerlogin.net [192.168.0.1]
2 28 ms 44 ms 37 ms cpc10-staf7-2-0-gw.3-1.cable.virginm.net [86.6.2
04.1]
3 102 ms 71 ms * brhm-core-2b-ae3-1858.network.virginmedia.net [6
2.255.32.245]
4 74 ms 75 ms 72 ms brhm-bb-1b-ae8-0.network.virginmedia.net [62.253
.174.77]
5 75 ms 73 ms 78 ms brhm-bb-2a-ae2-0.network.virginmedia.net [62.254
.42.105]
6 * 80 ms 74 ms brhm-bb-1c-ae0-0.network.virginmedia.net [62.254
.42.110]
7 77 ms 83 ms * tcl5-ic-2-ae0-0.network.virginmedia.net [212.250
.15.210]
8 78 ms 75 ms 76 ms 212.58.239.249
9 * * * Request timed out.
10 * * * Request timed out.
11 99 ms 90 ms 79 ms ae0.er01.telhc.bbc.co.uk [132.185.254.109]
12 79 ms 79 ms 80 ms 132.185.255.149
13 * 77 ms 76 ms fmt-vip71.telhc.bbc.co.uk [212.58.244.20]

Trace complete.

C:\Users\Epideme>

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Got similar here as well, although more of a step than a brick wall.

http://www.thinkbroadband.com/ping/s...10-07-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Yeah as I thought, those levels are fine - looks like a routing issue for sure. That first hop into the core is adding 70ms alone. Yuck.

Interesting to see you're only on 6 D/S channels though! I thought most people were on 8 by now.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Been on 6 ever since we got the 60mb upgrade last year, have only had 2 US for last couple of months though and that's not consistent, been having loss of connection a fair amount lately 3 or 4 times a week for a few mins to an hour sometimes I get it back with 1 US sometimes with 2.

Telephone support are still insisting there is nothing wrong with the network and want to arrange an engineer for me waste of time.

---------- Post added at 18:25 ---------- Previous post was at 17:06 ----------

http://www.thinkbroadband.com/speedt...7695510120.png


Any slower and its going to start going backwards! And they still insist there is nothing wrong with the network

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

In my case a tiny little step rather than a brick wall. Unusual none-the less.

[img]Download Failed (1)[/img]

That's 3 folk displaying a step change around 1.30 pm; Staffs, Shropshire and Coventry. All West Midlands or western Midlands. My speed is unaffected.

https://www.cableforum.co.uk/images/...2014/07/30.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

5 minutes ago finally they admit a problem, though they don't say what and nothing on the website as of now

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

http://www.thinkbroadband.com/ping/s...0-07-2014.htmlSeems a lot of people are having this problem today.

http://www.thinkbroadband.com/ping/s...0-07-2014.html

My Broadband Ping

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Looks like the problem is fixed.

[img]Download Failed (1)[/img]

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Mine has been more tame recently

http://www.thinkbroadband.com/ping/s...11-07-2014.png

as opposed to how it was:
http://www.thinkbroadband.com/ping/s...26-06-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Got some more feedback from VM forum :

I assume she meant to say wasn't posted on the main faults page

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

http://www.thinkbroadband.com/ping/s...27-07-2014.png

This is mine. Not the prettiest but I have a tech to be arranged as my upstream power levels are too high. Hopefully this may have a positive impact as aside from the ping jitter and spikiness, my connection (100/6) is very fast pretty much all the time.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Finally got moved on to 8 downstream channels earlier on today, was previously on 6.

DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 299000000 Hz 267000000 Hz 275000000 Hz 283000000 Hz 291000000 Hz 307000000 Hz 315000000 Hz 323000000 Hz
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked Locked Locked
Channel ID 79 75 76 77 78 80 215 216
Modulation QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level (dBmV) 0.0 dBmV -1.8 dBmV -1.8 dBmV -1.5 dBmV -2.0 dBmV 0.2 dBmV -0.2 dBmV -0.3 dBmV
RxMER (dB) 36.3 dB 36.8 dB 36.5 dB 36.4 dB 35.9 dB 36.5 dB 36.2 dB 36.0 dB

http://www.thinkbroadband.com/ping/s...27-08-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Had this when arrived home yesterday after a night away. Quickly fixed with a reboot. Any similar experiences recently?

http://www.thinkbroadband.com/ping/s...27-08-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Anybody else see a speed bump last night

[img]Download Failed (1)[/img]

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Nope. Nothing like that here in Coventry.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

All fine here too.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Nothing like that here in RG41.

http://www.thinkbroadband.com/ping/s...08-09-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Thanks gents, must be just me then, overdue for some node work this month that should hopefully iron this out.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I wish I hadn't upgraded to 152Mb so quickly. Poor performance now..

http://www.thinkbroadband.com/ping/s...14-09-2014.png

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

That's either a noise fault or a TBB glitch. What do your modem stats say?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

No, it's neither.

It's a core network fault. Saw it on several core nodes yesterday and today.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The later event certainly looks like load, it tailed off after peak time.

Not local load either, DOCSIS doesn't react like that to downstream overbooking.

The way the packet loss disappeared when the load abated makes me think the problem was/is deeper into VM's network.

Point to point Ethernet links congest like that when they have no advanced queuing running on them.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

At times when there's an issue, downstream channels switch between 6 and 7.

http://grab.by/An56
http://grab.by/An58

And this morning, things are obviously better at this time.

http://grab.by/AnV8
http://grab.by/AnVa

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Interesting. I may have to stand corrected unless there are 2 different issues going on.

Never seen such an extreme reaction from DOCSIS on the downstream before, shouldn't happen if the load balancing is working properly.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Before commenting on the downstream channels, please - copy & paste the stats rather than putting up images. From our end it makes extra work having to open other files .

Anyway, when you have the problem, you are losing DS-4 & DS-6. So I reckon there's a problem/fault in the circuit that VM will have to rectify.

---------- Post added at 08:29 ---------- Previous post was at 08:05 ----------

Knowing Igni as I do, he might have said: "I reckon you should have 8 downstream channels, not 7 or 6. One of the 6 will be a bit ugly too for erroring."

On that point, the pre & post RS errors on the downstream would be useful to see. They are present if you don't log into the GUI but instead use the ROUTER STATUS link at the top right of the login screen.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

https://www.cableforum.co.uk/images/local/2014/09/9.png

You were right earlier

And there are two issues - the massive ping spike is VM's core network, the packet loss is likely more local.